Santa Cruz Tallboy D / Aluminum / 29

2021 MountainTrail Manufacturer page

Last known price: $3,099

Prices shown first for United States
Travel: 130 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 11–50t
Gear range: 455%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS High 142.2–156
XS Low 142.2–156
SM High 153–167
SM Low 153–167
MD High 164–177
MD Low 164–177
LG High 174–187
LG Low 174–187
XL High 184–194
XL Low 184–194
XXL High 192–200.7
XXL Low 192–200.7

Components

21 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Tallboy D / Aluminum / 29 Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

12 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD Low

Table

Reach 448mm

Stack 612mm

Wheelbase 1187mm

Head angle 65.5°

Seat angle 76.3°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 12 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	400	398	425	423	450	448	470	468	490	488	515	513
Stackmm	592	593	601	603	610	612	619	621	637	639	656	657
Top tube lengthmm	539	540	567	568	596	597	619	622	646	647	678	679
Seat tube lengthmm	370	370	380	380	405	405	430	430	460	460	500	500
Head tube lengthmm	90	90	100	100	110	110	120	120	140	140	160	160
Head tube angle	65.7°	65.5°	65.7°	65.5°	65.7°	65.5°	65.7°	65.5°	65.7°	65.5°	65.7°	65.5°
Seat tube angle	76.8°	76.5°	76.7°	76.4°	76.6°	76.3°	76.4°	76.2°	76.2°	76°	76°	75.8°
Chainstay lengthmm	430	430	430	430	430	430	430	430	430	430	430	430
Wheelbasemm	1129	1128	1158	1157	1187	1187	1211	1211	1239	1239	1272	1272
Front centermm	699	698	728	727	757	757	781	781	809	809	842	842
Bottom bracket dropmm	38	41	38	41	38	41	38	41	38	41	38	41
Bottom bracket heightmm	335	332	335	332	335	332	335	332	335	332	335	332
Standover heightmm	681	678	696	692	708	704	706	703	702	698	702	698
Fork rakemm	46	46	46	45	46	46	46	46	46	46	45	46
Trailmm	119	120	119	121	119	120	119	120	119	120	120	120
Stack/reach ratio	1.48	1.49	1.41	1.43	1.36	1.37	1.32	1.33	1.30	1.31	1.27	1.28
Suspension and parts
Crank lengthmm	165	165	170	170	170	170	175	175	175	175	175	175
Stem lengthmm	40	40	50	50	50	50	50	50	50	50	50	50

Not published by the manufacturer: Front travel, Rear travel, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 84.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Tire width: 2.3″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,324 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,137 bicycles with this information
Coverage: 84.2% of the class

Highest gear

84.4 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,137 bicycles with this information
Coverage: 84.2% of the class

Shifting

Mechanical

53 of 1,346 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,346 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 32.3 km/h

Total gear range 455%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.6–84.4 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2021
Lowest gear: 1137 bicycles with this information, 84.2% of the class
Highest gear: 1137 bicycles with this information, 84.2% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2021 builds
Specification	This bicycle Santa Cruz Tallboy D / Aluminum / 29	Santa Cruz Tallboy R / Aluminum / 29	Santa Cruz Tallboy R / Carbon C / 29	Santa Cruz Tallboy S / Carbon C / 29	Santa Cruz Tallboy / Carbon CC / 29 X01	Santa Cruz Tallboy / Carbon C / 29 XT
Frame
Frame material	Aluminum	Aluminum	Carbon	Carbon	Carbon	Carbon
Drivetrain
Smallest sprocket	11	11	11	10	10	10
Largest sprocket	50	50	50	52	52	51
Lowest gear	18.6 in	18.6 in	18.6 in	17.9 in	17.9 in	18.2 in
Highest gear	84.4 in	84.4 in	84.4 in	92.8 in	92.8 in	92.8 in
Other specifications
Fork spring	Not informed	Air	Air	Air	Air	Air
Bottom bracket standard	Not informed	Not informed	Not informed	Not informed	Not informed	BSA